By Kyle Blaine, Jeff Zeleny and Marshall Cohen
CNN
January 16, 2020
(CNN)In a tense and dramatic exchange in the moments after the Democratic debate Tuesday night, Elizabeth Warren accused Bernie Sanders of calling her a liar on national television.
Sanders responded that it was Warren who called him a liar and said they should not talk about it right then.
When the CNN/Des Moines Register debate concluded, the studio audience and viewers saw Warren walk over to Sanders and not shake his outstretched hand. The two senators seemed to have a heated and brief exchange before Sanders appeared to throw his hands up, turn and walk away. The video of the exchange aired live with no audio.